[OSGeo-Standards] The OGC requests comments on the OWS Context Conceptual Model and ATOM Extension candidate standards

[Arnulf Christl]

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On 02/19/2013 02:01 PM, Raj Singh wrote:
> You have to explain your point better for me. I understand that
> there are two distinct tasks here -- being a WMS client (an
> encoder) and being able to parse any WMS request into its
> parameters (a parser). And I understand that most clients are not
> also parsers. But if you want the additional capability of reading
> in the state of someone else's WMS map, how do you avoid needing to
> build a parser? Doesn't the additional code needed match up with
> the desired functionality? I thought we have asked for exactly the
> right amount of work ;)
> 
> --- Raj The OGC: Making location count. 
> http://www.opengeospatial.org/ogc/organization/staff/rsingh
> 
> 
> On Feb 18, at 8:59 PM, Jody Garnett <jody.garnett at gmail.com>
> wrote:
> 
>> So back to my origional feedback to Jim.
>> 
>> The conceptual model makes great re-use of existing standards,
>> you can watch it call out to the other fish in the pond and it
>> very carefully does not repeat anything making it easier to write
>> as a standard.
>> 
>> If you swap perspective to that of an implementor you are left
>> with … a gap of understanding.
>> 
>> The document produced by the ATOM Encoding requires client
>> authors to implement both an encoder (so they can make request)
>> and a parser so that they can understand the information that has
>> been cleverly reused by the standards body.
>> 
>> This standard is lazy on the part of the standards body, and 
>> hostile to client authors.
>> 
>> As an example: Just because GeoTools has the ability to encode
>> WMS requests, DOES NOT imply there is a ready-at-hand WMS
>> request parser available.
>> 
>> As such the payload delivered by ATOM to describe a WMS request
>> may as well be on the moon. Perhaps a bit further out of the
>> payload is the content of a PUT request, or needs to call out for
>> more schema information as with GML and WFS content.
>> 
>> So kudos on the reuse of definitions, missed the target audience 
>> when considering implementors (you have asked for too much work).
>>  -- Jody Garnett
>> 
>> On Tuesday, 19 February 2013 at 10:41 AM, Jody Garnett wrote:
>> 
>>> Last time I looked at this one with Jim … I hated it (even
>>> though he was keen on how ATOM had been used). For me It was
>>> not providing enough context for a client to make its own
>>> request.
>>> 
>>> I would really like to see a context document take shape, it 
>>> would be very valuable between systems (which we tend to like
>>> on these osgeo lists).
>>> 
>>> Tracing through your links I arrive at some word docs, don't 
>>> suppose you can format shift those to PDF or something more 
>>> portable.

HTML is in the pipeline and way better than PDF. But will take some
time and also not sure whether it will happen for all the existing
documents (maybe with some help from the editors if still alive?).

>>> -- Jody Garnett
>>> 
>>> On Tuesday, 19 February 2013 at 3:39 AM, Carl Reed wrote:
>>> 
>>>> I am not sure if this group saw this announcement. This is a 
>>>> preliminary comment period. There will be another comment 
>>>> period later in the process.
>>>> 
>>>> The announcement is here:
>>>> 
>>>> http://www.opengeospatial.org/node/1765
>>>> 
>>>> Please ignore the Comment Due date. The OGC OWS Context 
>>>> Standards Working Group is happy to receive comments on this 
>>>> candidate standard at any time.
>>>> 
>>>> Regards
>>>> 
>>>> Carl Reed, PhD CTO and Executive Director Standards Program 
>>>> Open Geospatial Consortium www.opengeospatial.org
>>>> 
>>>> The OGC: Making Location Count!
>>>> 
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>>> 
>> 
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> 
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- -- 
Arnulf Christl
http://metaspatial.net
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